diff --git a/appveyor.yml b/appveyor.yml
index 72d34b8..39f8af0 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -6,12 +6,12 @@ cache:
   - '%LOCALAPPDATA%\Composer\files'
 
 init:
-  - SET PATH=c:\tools\php72;%PATH%
+  - SET PATH=c:\tools\php73;%PATH%
 
 install:
   - ps: Set-Service wuauserv -StartupType Manual
   - cinst -y php
-  - cd c:\tools\php72
+  - cd c:\tools\php73
   - copy php.ini-production php.ini /Y
   - echo date.timezone="UTC" >> php.ini
   - echo extension_dir=ext >> php.ini